code: def extract_item_bias_func(model, item_id):
      return model.serve_inspect_ports(
          {"item_id": item_id},
          ports=[model.servegraph.interactiongraph["item_bias"]],
      )[0]
  
file_path: openrec/tf1_examples/vbpr_tradesy.py
imports: from openrec import ModelTrainer
  from openrec import FastDotProductServer
  from openrec.tf1.utils import Dataset
  from openrec.tf1.recommenders import VBPR
  from openrec.tf1.utils.evaluators import AUC, Recall
  from openrec.tf1.utils.samplers import VBPRPairwiseSampler
  from openrec.tf1.utils.samplers import EvaluationSampler
  import dataloader
label_desc: Use image node_id 3 for calling a global function with example usage: extract_item_bias_func(model, item_id) and returns: model